P0717 2021 GMC Sierra Code - Transmission Input Speed Sensor Circuit No Signal
Quick Answer
The P0717 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the transmission input speed sensor circuit, specifically that there is no signal being received. Common causes include Faulty transmission input speed sensor, Damaged wiring or connectors in the sensor circuit, Malfunctioning TCM. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0717 2021 GMC Sierra indicates Transmission Input Speed Sensor Circuit No Signal.
- Common causes
- Common causes include Faulty transmission input speed sensor, Damaged wiring or connectors in the sensor circuit, Malfunctioning TCM.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0717 2021 GMC Sierra Description
The P0717 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the transmission input speed sensor circuit, specifically that there is no signal being received. The transmission input speed sensor is a vital component that monitors the rotational speed of the input shaft inside the transmission. This information is crucial for the transmission control module (TCM) to determine the appropriate gear shifting strategy and ensure smooth operation of the transmission.
Common Causes of P0717 2021 GMC Sierra
- Faulty transmission input speed sensor
- Damaged wiring or connectors in the sensor circuit
- Malfunctioning TCM
- Transmission issues
- Electrical problems in the transmission system
Symptoms of P0717 2021 GMC Sierra
- Harsh or delayed shifting
- Erratic transmission behavior
- Transmission slipping
- Illuminated check engine light
- Vehicle going into limp mode
How to Fix P0717 2021 GMC Sierra
- Begin by diagnosing the root cause of the issue using a scan tool to read the DTC and perform a visual inspection of the transmission input speed sensor and its wiring.
- Test the transmission input speed sensor using a multimeter to check for proper resistance and voltage output.
- Inspect the wiring and connectors in the sensor circuit for any damage or corrosion, repairing or replacing as necessary.
- If the sensor is faulty, replace it with a new one and clear the DTC from the TCM memory.
- Test drive the vehicle to ensure that the transmission is shifting properly and that the code does not return.
Cost to Fix P0717 2021 GMC Sierra
The typical repair costs for addressing a P0717 code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing a transmission input speed sensor can cost between $100 and $200 for the part, with additional costs for labor that can range from $100 to $300. Overall, the total repair cost can be expected to be in the range of $200 to $500. It is important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and labor rates at the auto repair shop. It is advisable to consult with a professional mechanic for a more accurate cost estimate.
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